'use strict'
const path = require('path')


function resolve (dir) {
	return path.join(__dirname, dir)
}

const name = "BLOG" // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 8079 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
// vue.config.js的主体配置
module.exports = {
	/**
	 * You will need to set publicPath if you plan to deploy your site under a sub path,
	 * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
	 * then publicPath should be set to "/bar/".
	 * In most cases please use '/' !!!
	 * Detail: https://cli.vuejs.org/config/#publicpath
	 */
	publicPath: '/',
	outputDir: 'dist',
	assetsDir: 'static',
	lintOnSave: process.env.NODE_ENV === 'development',
	productionSourceMap: false,
	devServer: {
		// 服务相关的设置
		host: '127.0.0.1', // 指定一个主机名
		port: 8002, // 指定一个端口号
		open: true, // 运行成功后是否自动打开页面
		overlay: {
			warnings: false,
			errors: true
		},
		// proxy: {
		//   // // 代理相关。如果你的前端应用和后端 API 服务器没有运行在同一个主机上，你需要在开发环境下将 API 请求代理到 API 服务器
		//   // '/api': {
		//   //   // 对请求接口中出现的api进行代理
		//   //   target: process.env.VUE_APP_PROXY_URL, // 代理的目标地址，这个取值在后面的文件会讲到
		//   //   changeOrigin: true, // 是否改变域名，
		//   //   ws: false, // 是否开启webSocket
		//   //   pathRewrite: {
		//   //     // 路径重写，如果默认不重写路径，那么`/api/users`会被代理到`target路径/api/users`
		//   //     '^/api': '' // 对api进行路径重写，重写后，那么`/api/users`会被代理到`target路径/users`
		//   //   }
		//   // },
		//   // 真实地址指向http://127.0.0.1:9001/admin
		//   '/api/admin': {
		//     // target: process.env.ADMIN_BASE_URL,
		//     target: "http://127.0.0.1:9001/",
		//     ws: false,
		//     changeOrigin: true,
		//     pathRewrite: {
		//       '^/api/admin': '/inner_api/admin'
		//     }
		//   }
		// }
	},
	configureWebpack: {
		// provide the app's title in webpack's name field, so that
		// it can be accessed in index.html to inject the correct title.
		name: name,
		devtool: 'source-map',
		resolve: {
			alias: {
				'@': resolve('src')
			}
		}
	},
	chainWebpack (config) {
		// it can improve the speed of the first screen, it is recommended to turn on preload
		config.plugin('preload').tap(() => [
			{
				rel: 'preload',
				// to ignore runtime.js
				// https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
				fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
				include: 'initial'
			}
		])

		// when there are many pages, it will cause too many meaningless requests
		config.plugins.delete('prefetch')

		// set svg-sprite-loader
		// config.module
		// 	.rule('svg')
		// 	.exclude.add(resolve('src/icons'))
		// 	.end()
		// config.module
		// 	.rule('icons')
		// 	.test(/\.svg$/)
		// 	.include.add(resolve('src/icons'))
		// 	.end()
		// 	.use('svg-sprite-loader')
		// 	.loader('svg-sprite-loader')
		// 	.options({
		// 		symbolId: 'icon-[name]'
		// 	})
		// 	.end()
	}
}
